JLA D90 Installation guide

Brand: JLA

Model: D90

Category: Electric laundry dryers

Type: Installation guide

D90 Installation Manual

Phase 7 Gas (DSI / HSI) Non-Coin

Part No. 113374-4

WARNING: For your safety the information in

this manual must be followed to minimize the risk

of fire or explosion or to prevent property

damage, personal injury or death.

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any

other appliance.

— WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electrical switch; do not

use any phone in your building.

• Clear the room, building or area of all

occupants.

• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

• If you cannot reach your gas supplier, call

the fire department.

— Installation and service must be performed by a

qualified installer, service agency or the gas

supplier.

AVERTISSEMENT: Assurez-vous de bien

suivre les instructions données dans cette notice

pour réduire au minimum le risque d’incendie

ou d’explosion ou pour éviter tout dommage

matériel, toute blessure ou la mort.

— Ne pas entreposer ni utiliser d’essence ni

d’autres vapeurs ou liquides inflammables à

proximité de cet appareil ou de tout autre

appareil.

— QUE FAIRE SI VOUS SENTEZ UNE ODEUR

DE GAZ:

• Ne pas tenter d’allumer d’appareils.

• Ne touchez à aucun interrupteur. Ne pas

vous servir des téléphones se trouvant dans

le bâtiment.

• Évacuez la pièce, le bâtiment ou la zone.

• Appelez immédiatement votre fournisseur

de gaz depuis un voisin. Suivez les

instructions du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur

de gaz, appelez le service des incendies.

— L’installation et l’entretien doivent être assurés

par un installateur ou un service d’entretien qualifié

ou par le fournisseur de gaz.

JLA Limited

Meadowcroft Lane, Halifax Road

Ripponden

West Yorkshire, England

HX6 4AJ

Telephone: 01422 822282 / Fax: 01422 824390

We have tried to make this manual as complete as possible and hope you will find it useful. Manufacturer reserves the right

to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change

or discontinue models. The illustrations included in this manual may not depict your particular dryer exactly.

Important

For your convenience, log the following information:

DATE OF PURCHASE ____________________________________________________________ MODEL NO. ______________

DISTRIBUTOR’S NAME ____________________________________________________________________________________

Serial Number(s) ________________________________________________________________________________________

________________________________________________________________________________________

Replacement parts can be obtained from your distributor or JLA. When ordering replacement parts from JLA, you can FAX

your order to JLA at 01422 824390 or telephone your order directly to the JLA Parts Department at 01422 822282. Please

specify the dryer model number and serial number in addition to the description and part number, so that your order is

processed accurately and promptly.

D90

“IMPORTANT NOTE TO PURCHASER”

Information must be obtained from your local gas supplier on the instructions

to be followed if the user smells gas. These instructions must be posted in a

prominent location near the dryer.

FOR YOUR SAFETY

Do not store or use gasoline or

other flammable vapors and

liquids in the vicinity of this or

any other appliance.

POUR VOTRE SÉCURITÉ

Ne pas entreposer ni utiliser d’essence

ni d’autres vapeurs ou liquides

inflammables à proximité de cet

appareil ou de tout autre appareil.

Retain This Manual In A Safe Place For Future Reference

This product embodies advanced concepts in engineering, design, and safety. If this product is properly maintained, it will

provide many years of safe, efficient, and trouble free operation.

ONLY qualified technicians should service this equipment.

OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with

the dryer.

The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.

IMPORTANT

YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPLY AND THE GAS

SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE

MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, OR

TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health

Administration) STANDARDS.

WARNING

CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYER(S).

CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION.

CAUTION

DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION.

FOR YOUR SAFETY

DO NOT DRY MOP HEADS IN THE DRYER.

DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES.

WARNING

UNDER NO CIRCUMSTANCES should the dryer door switch, the lint drawer switch,

or the heat safety circuit ever be disabled.

“Caution: Label all wires prior to

disconnection when servicing controls. Wiring

errors can cause improper operation.”

«Attention: Au moment de l’entretien des

commandes, étiquetez tous les fils avant de

les débrancher. Des erreurs de câblage

peuvent entraîner un fonctionnement ina-

déquat et dangereux.»

WARNING

The dryer must never be operated with any of the back guards, outer tops, or service

panels removed. PERSONAL INJURY OR FIRE COULD RESULT.

IMPORTANT

PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or

specified in the installation manual included with the dryer.

WARNING

DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN

PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED.

Dryers must not be installed or stored in an area where it will be exposed to water or weather.

The wiring diagram for the dryer is located in the front electrical control box area.

IMPORTANT

Dryer must be installed in a location/environment, which the ambient temperature

remains between 40° F (4.44° C) and 130° F (54.44° C).

SECTION I

SAFETY PRECAUTIONS ..............................................................................................................................2

SECTION II

SPECIFICATIONS/COMPONENT IDENTIFICATION .........................................................................4

A. Specifications.......................................................................................................................................... 4

B. Component Identification........................................................................................................................ 6

SECTION III

INSTALLATION PROCEDURES ................................................................................................................8

A. Location Requirements........................................................................................................................... 8

B. Unpacking/Setting Up............................................................................................................................. 9

C. Dryer Enclosure Requirements ............................................................................................................ 10

D. Fresh Air Supply Requirements ............................................................................................................ 10

E. Exhaust Requirements.......................................................................................................................... 11

F. Electrical Information ........................................................................................................................... 15

G. Gas Information .................................................................................................................................... 17

H. Water Information ................................................................................................................................ 20

I. Preparation for Operation/Start-Up...................................................................................................... 23

J. Preoperational Tests ............................................................................................................................. 23

K. Compressed Air Requirements............................................................................................................. 25

L. Shutdown Instructions .......................................................................................................................... 26

SECTION IV

SERVICE/PARTS INFORMATION ...........................................................................................................27

A. Service .................................................................................................................................................. 27

B. Parts...................................................................................................................................................... 27

SECTION V

WARRANTY INFORMATION ...................................................................................................................28

A. Returning Warranty Cards ................................................................................................................... 28

B. Warranty ............................................................................................................................................... 28

SECTION VI

ROUTINE MAINTENANCE ......................................................................................................................29

A. Cleaning ................................................................................................................................................ 29

B. Adjustments .......................................................................................................................................... 30

C. Lubrication ............................................................................................................................................ 30

SECTION VII

DATA LABEL INFORMATION .................................................................................................................31

SECTION VIII

PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ...................32

SECTION IX

PHASE 7 NON-COIN SYSTEM DIAGNOSTICS....................................................................................33

A. Diagnostic (L.E.D. Display) Fault Messages ...................................................................................... 33

Table of Contents

2 JLA Limited 113374-4

SECTION I

SAFETY PRECAUTIONS

WARNING: For your safety, the information in this manual must be followed to minimize the risk of fire or

explosion or to prevent property damage, personal injury, or loss of life.

WARNING: The dryer must never be operated with any of the back guards, outer tops, or service

panels removed. PERSONAL INJURY OR FIRE COULD RESULT.

1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

2. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the user smells

gas. The instructions should be posted in a prominent location.

3. WHAT TO DO IF YOU SMELL GAS:

a. DO NOT try to light any appliance.

b. DO NOT touch any electrical switch.

c. DO NOT use any phone in your building.

d. Clear the room, building, or area of ALL occupants.

e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

f. If you cannot reach your gas supplier, call the fire department.

4. Installation and service must be performed by a qualified installer, service agency, or gas supplier.

5. Dryer(s) must be exhausted to the outdoors.

6. Although JLA produces a very versatile dryer, there are some articles that, due to fabric composition or cleaning

method, should not be dried in it.

WARNING: Dry only water washed fabrics. DO NOT dry articles spotted or washed in dry cleaning

solvents, a combustible detergent, or “all purpose” cleaner. EXPLOSION COULD RESULT.

WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint, or wax.

EXPLOSION COULD RESULT.

WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a fire

hazard.

WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly

textured rubberlike materials. Drying in a heated basket (tumbler) may damage plastics or

rubber and may be a fire hazard.

113374-4 Telephone 01422 822282 3

7. A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and

area around the back of the dryer. The frequency of inspection and cleaning can best be determined from experience

at each location.

WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fire hazard.

8. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the National

Electrical Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the Canadian Electrical Codes Parts 1 &

2 CSA C22.1-1990 or LATEST EDITION.

NOTE: Failure to electrically ground the dryer properly will VOID THE WARRANTY.

9. UNDER NO CIRCUMSTANCES should the dryer door switch, the lint drawer switch, or the heat safety circuit

ever be disabled.

WARNING: PERSONAL INJURY OR FIRE COULD RESULT SHOULD THE DRYER DOOR

SWITCH, THE LINT DRAWER SWITCH, OR THE HEAT SAFETY CIRCUIT EVER

BE DISABLED.

10. This dryer is not to be used in the presence of dry cleaning solvents or fumes.

11. Remove articles from the dryer as soon as the drying cycle has been completed.

WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can create a fire

hazard.

12. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE DRYER.

13. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less than sixty-

six percent (66%), 63 pounds (28.57 kg) of its rated capacity.

WARNING: YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPLY AND THE

GAS SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE

MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION,

OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health

Administration) STANDARDS.

IMPORTANT: Dryer must be installed in a location/environment, which the ambient temperature

remains between 40º F (4.44º C) and 130º F (54.44º C).

4 JLA Limited 113374-4

SECTION II

SPECIFICATIONS/COMPONENT IDENTIFICATION

A. SPECIFICATIONS

MAXIMUM CAPACITY (DRY WEIGHT) 95 lb 43.1 kg

TUMBLER DIAMETER 41-3/8” 105.1 cm

TUMBLER DEPTH 28-7/8” 73.3 cm

TUMBLER VOLUME 22.5 cu ft 637.12 L

TUMBLER/DRIVE MOTOR 1/2 hp 0.373 kW

BLOWER/FAN MOTOR 3 hp 2.238 kW

DOOR OPENING (DIAMETER) 31-3/8” 79.7 cm

DOOR SILL HEIGHT N / A

WATER CONNECTION*3/4”-11.5 NH

(North America)

3/4” B.S.P.T.

(Outside North America)

DRYERS PER 20’/40’ CONTAINER 10 / 20

DRYERS PER 48’/53’ TRUCK 24 / 26

VOLTAGE AVAILABLE 208-460V 3ø 3,4w 50/60 Hz

APPROXIMATE NET WEIGHT 1,087 lb 493.1 kg

APPROXIMATE SHIPPING WEIGHT 1,157 lb 524.8 kg

AIRFLOW 60 Hz 2,700 cfm 76.5 cmm

50 Hz 2,268 cfm 64.2 cmm

HEAT INPUT 350,000 Btu/hr 88,200 kcal/hr

EXHAUST CONNECTION (DIAMETER) 16” 40.6 cm

COMPRESSED AIR CONNECTION 1/4” Quick Connection

COMPRESSED AIR VOLUME 3.25 cfh 0.09 cmh

INLET PIPE CONNECTION 1” F.B.S.P.T.

1” B.S.P.T.

(CE and Australia Only)

VOLTAGE AVAILABLE

N / A

APPROXIMATE NET WEIGHT

APPROXIMATE SHIPPING WEIGHT

AIRFLOW

EXHAUST CONNECTION (DIAMETER)

COMPRESSED AIR CONNECTION

COMPRESSED AIR VOLUME

OVEN SIZE

kW Btu/hr kcal/hr

VOLTAGE AVAILABLE

N / A

APPROXIMATE NET WEIGHT

APPROXIMATE SHIPPING WEIGHT

AIRFLOW

STEAM CONSUMPTION

OPERATING STEAM PRESSURE

EXHAUST CONNECTION (DIAMETER)

COMPRESSED AIR CONNECTION

COMPRESSED AIR VOLUME

BOILER HORSEPOWER (NORMAL LOAD)

SUPPLY CONNECTION

RETURN CONNECTION

Shaded areas are stated in metric equivalents 5/5/04

* The fire suppression system must be supplied with water at a pressure of 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar).

** The dryers must be provided with a clean dry regulated 80 psi +/- 10 psi (5.51 bar +/- 0.69 bar) air supply.

NOTE: JLA reserves the right to make changes in specifications at any time without notice or obligation.

Gas**ElectricSteam

113374-4 Telephone 01422 822282 5

NOTE: JLA reserves the right to make changes in specifications at any time without notice or obligation.

SPECIFICATIONS

6 JLA Limited 113374-4

B. COMPONENT IDENTIFICATION

1. Dryer Front View

Illus. No. Description

1 Microprocessor Control/Keyboard (touch pad) Panel Assembly (controls)

2 Control (top access) Door Assembly

3 Main Door Assembly

4 Lint Panel Assembly

5 Lint Door

6 Wire Diagram (located behind control door)

7 Top Console (module) Assembly

113374-4 Telephone 01422 822282 7

2. Dryer Rear View

Illus. No. Description

1 Electrical Service Connections

2 Top Console

3 Heating Unit

4 Relay/Wiring Box

5 Data Label and Installation Label

6 Air Connection

7 Exhaust Transition Piece

8 JLA Limited 113374-4

SECTION III

INSTALLATION PROCEDURES

Installation should be performed by competent technicians in accordance with local and state codes. In the absence of

these codes, the installation must conform to applicable American National Standards: ANSI Z223.1-LATEST EDITION

(National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical Code) or in Canada, the

installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-

B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing) or Canadian

Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION (for Electrical Connections).

A. LOCATION REQUIREMENTS

Before installing the dryer, be sure the location conforms to local codes and ordinances. In the absence of such codes or

ordinances the location must conform with the National Fuel Gas Code ANSI.Z223.1 LATEST EDITION, or in Canada,

the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-

B149.2-M91 (L.P. Gas) or LATEST EDITION (for General Installation and Gas Plumbing).

1. The dryer must be installed on a sound level floor capable of supporting its weight. Carpeting must be removed

from the floor area that the dryer is to rest on.

IMPORTANT: “The dryer must be installed on noncombustible floors only.”

2. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.

3. The dryer is for use in noncombustible locations.

4. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply Requirements

in Section D).

5. Clearance provisions must be made from combustible construction as noted in this manual (refer to Dryer Enclosure

Requirements in Section C).

6. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual (refer to

Dryer Enclosure Requirements in Section C).

7. The dryer must be installed with a proper exhaust duct connection to the outside as noted in this manual (refer to

Exhaust Requirements in Section E).

8. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual (refer to

Exhaust Requirements in Section E).

IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary.

9. The dryer must be installed with adequate clearance for air openings into the combustion chamber.

CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6 months,

inspect the exhaust ducting and remove any lint build up.

IMPORTANT: Dryer must be installed in a location/environment, which the ambient temperature

remains between 40º F (4.44º C) and 130º F (54.44º C).

113374-4 Telephone 01422 822282 9

B. UNPACKING/SETTING UP

Remove protective shipping material (i.e., plastic wrap and/or optional shipping box) from dryer.

IMPORTANT: The dryer must be transported and handled in an upright position at ALL times.

The dryer can be moved to its final location while still attached to the skid

or with the skid removed. To unskid the dryer, locate and remove the four

(4) lag bolts securing the base of the dryer to the wooden skid. Two (2) are

at the rear base, and two (2) are located in the bottom of the lint chamber.

To remove the two (2) lag bolts located in the lint chamber area, remove

the front panel.

1. Leveling Dryer

To level the dryer, place 4-inch (10.16 cm) square metal shims or

other suitable material under the base pads. It is suggested that the

dryer be tilted slightly to the rear (refer to the illustration on right).

2. If more headroom is needed when moving the dryer into position, the

top console (module) may be removed.

To Remove Top Console (module)...

a. Disconnect the ground wire (A in the illustration below) located

at the rear upper left corner of the dryer.

b. Remove the six (6) sets of nuts and washers (B in the illustration

below) holding the console (module) to the base.

c. Disconnect the white plug connector (C in the illustration on

right) located on the top of the rear electric service/relay box

(provides power to the heat circuit).

d. Disconnect air connection from the 3-way micro valve.

e. Lift the console (module) off of the dryer base.

IMPORTANT: The dryer must be transported and handled in an upright position at ALL times.

10 JLA Limited 113374-4

C. DRYER ENCLOSURE REQUIREMENTS

Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be positioned

approximately 24-inches (60.96 cm) from the nearest obstruction (i.e., wall) for ease of installation, maintenance, and

service. Bulkheads and partitions should be made from noncombustible materials. The clearance between the bulkhead

header and the dryer must be a minimum of 4-inches (10.16 cm) and must not extend more than 4-inches (10.16 cm) to

the rear of the front. A 2-inch (5.08 cm) clearance is required between the bulkhead facing and the top of the dryer.

NOTE: Bulkhead facing should not be installed until after the dryer is in place. Ceiling area must be located

a minimum of 12-inches (30.48 cm) above the dryer top console (module).

NOTE: When fire sprinkler systems are located above the dryers, a minimum of 18-inches (45.72 cm) above

the dryer console (module) is required. Dryers may be positioned sidewall to sidewall, however, 1 or

2-inches (2.54 or 5.08 cm) is suggested for ease of installation and maintenance. Allowances must be

made for the opening and closing of the control door and the lint door.

D. FRESH AIR SUPPLY REQUIREMENTS

When the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), and exhausts it out

of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air is

inadequate, drying time and drying efficiency will be adversely affected. Ignition problems and sail switch “fluttering”

problems may result, as well as premature motor failure from overheating. The dryer must be installed with provisions

for adequate combustion and make-up air supply.

Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. An unrestricted

source of air is necessary for each dryer. As a general rule, an unrestricted air entrance from the outdoors (atmosphere)

of a minimum of 350 square inches (2258.1 square cm) is required for each gas dryer (based on 1 square inch per 1000

Btus).

113374-4 Telephone 01422 822282 11

To compensate for the use of registers or louvers used over

the openings, this make-up air must be increased by

approximately thirty-three percent (33%). Make-up air

openings should not be located in an area directly near where

exhaust vents exit the building.

It is not necessary to have a separate make-up air opening

for each dryer. Common make-up air openings are acceptable.

However, they must be set up in such a manner that the

make-up air is distributed equally to ALL the dryers.

EXAMPLE: For a bank of four (4) dryers, two (2) unrestricted

openings measuring 26-inches by 26.9-inches (66.1 cm by

68.4 cm) each are acceptable.

Allowances must be made for remote or constricting

passageways or where dryers are located at excessive

altitudes or predominantly low pressure areas.

IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes. Make-up

air that is contaminated by dry cleaning solvent fumes will result in irreparable damage to the

motors and other dryer components.

NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.

E. EXHAUST REQUIREMENTS

1. General Exhaust Ductwork Information

Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork will

create excessive back pressure which results in slow drying, increased use of energy, overheating of the dryer, and

shutdown of the burner by the airflow (sail) switches, burner hi-limits, or basket (tumbler) hi-heat thermostats. The

dryer must be installed with a proper exhaust duct connection to the outside.

CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors.

CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORK CAN CREATE A

POTENTIAL FIRE HAZARD.

NOTE: When dryers are exhausted into a multiple (common) exhaust line, each dryer must be supplied with a

back draft damper.

The ductwork should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with

as few turns as possible. Single or independent dryer venting is recommended.

A = 26-Inches (66.1 cm) B = 26.9-Inches (68.4 cm)

12 JLA Limited 113374-4

When single dryer venting is used, the ductwork from the dryer to the outside exhaust outlet should not exceed 20

feet (6.09 meters). In the case of multiple (common) dryer venting, the distance from the last dryer to the outside

exhaust outlet should not exceed 20 feet (6.09 meters). The shape of the ductwork is not critical as long as the

minimum cross-sectional area is provided. It is suggested that the use of 90º turns be avoided; use 30º and/or 45º

bends/angles instead. The radius of the elbows should preferably be 1-1/2 times the diameter of the duct. Excluding

basket (tumbler)/dryer elbow connections or elbows used for outside protection from the weather, no more than two

(2) elbows should be used in the exhaust duct run. If more than two (2) elbows are used, the cross-sectional area

of the ductwork must be increased in proportion to the number of elbows used.

ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which

will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL

ductwork joints must be taped to prevent moisture and lint from escaping into the building. Inspection doors should

be installed at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.

IMPORTANT: Exhaust back pressure measured by a manometer in the exhaust duct must be no less than 0

and must not exceed 0.3 inches (0.74 mb) of water column (W.C.).

NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the

opening must be 2-inches (5.08 cm) larger than the duct (all the way around). The duct must be

centered within this opening.

Outside Ductwork Protection

To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward should be

installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it should be

protected from the weather by using a 180° turn to point the opening downward. In either case, allow at least twice

the diameter of the duct between the duct opening and the nearest obstruction.

IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust ductwork.

2. Single Dryer Venting

Where possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust duct should be laid

out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. It

is suggested that the use of 90° turns in the ducting be avoided; use 30° and/or 45° angles instead. The shape of the

exhaust ductwork is not critical as long as the minimum cross section area is provided.

IMPORTANT: The minimum duct size for a gas unit is 16-inches (40.64 cm) for a round duct and

14-1/4” x 14-1/4” (36.2 cm x 36.2 cm) for a square duct. THE DUCT SIZE MUST NOT

BE REDUCED ANYWHERE DOWNSTREAM OF THE DRYER.

113374-4 Telephone 01422 822282 13

IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust duct area

must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column (W.C.).

It is suggested that the ductwork from each dryer not exceed 20 feet (6.09 meters) with no more than two (2)

elbows (excluding dryer connections). If the ductwork exceeds 20 feet (6.09 meters) or has numerous elbows, the

cross-sectional area of the ductwork must be increased in proportion to the length and number of elbows in it. In

calculating duct size, the cross-sectional area of a square or rectangular duct must be increased twenty percent

(20%) for each additional 20 feet (6.09 meters). The diameter of a round exhaust duct should be increased ten

percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional 40 feet (12.19

meters), and each 45º elbow is equivalent to an additional 20 feet (6.09 meters).

IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to

an extent. Maximum proportional ductwork runs cannot exceed 20 feet (6.09 meters) more

than the original limitations of 20 feet (6.09 meters) with two (2) elbows. When the ductwork

approaches the maximum limits as noted in this manual, a professional heating, ventilating, and

air-conditioning (HVAC) firm should be consulted for proper venting information.

ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which

will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL

ductwork joints must be taped to prevent moisture and lint from escaping into the building. Inspection doors should

be installed at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.

NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the

opening must be 2-inches (5.08 cm) larger than the duct (all the way around). The duct must be

centered within this opening.

14 JLA Limited 113374-4

3. Multiple Dryer (Common) Venting

If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be channeled

into a “common main duct.” The individual ducts should enter the bottom or side of the main duct at an angle not

more than 45° in the direction of the flow and should be spaced at least 46-inches (116.84 cm) apart. The main

duct should be tapered, with the diameter increasing before each individual 16-inch (40.54 cm) duct is added.

IMPORTANT: When exhausted into a multiple (common) exhaust line, a back draft damper must be installed

at each dryer duct.

IMPORTANT: No more than three (3) dryers should be connected to one (1) main common duct.

The main duct may be any shape or cross-sectional area, as long as the minimum cross section area is provided. The

illustration above shows the minimum cross section area for multiple dryer round or square venting. These figures

must be increased 10 square inches (64.52 square centimeters) when rectangular main ducting is used, and the

ratio of duct width to depth should not be greater than 3-1/2 to 1. These figures must be increased in proportion

if the main duct run to the last dryer to where it exhausts to the outdoors is unusually long (over 20 feet [6.09

meters]) or has numerous elbows (more than two [2]) in it. In calculating ductwork size, the cross-sectional area of

a square or rectangular duct must be increased twenty percent (20%) for each additional 20 feet (6.09 meters).

The diameter of a round exhaust must be increased ten percent (10%) for each additional 20 feet (6.09 meters).

Each 90° elbow is equivalent to an additional 40 feet (12.19 meters) and each 45° elbow is equivalent to an additional

20 feet (6.09 meters).

113374-4 Telephone 01422 822282 15

IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to

an extent. Maximum proportional ductwork runs cannot exceed 20 feet (6.09 meters) more

than the original limitations of 20 feet (6.09 meters) with two (2) elbows. When the ductwork

approaches the maximum limits as noted in this manual, a professional heating, ventilating, and

air-conditioning (HVAC) firm should be consulted for proper venting information.

IMPORTANT: Exhaust back pressure measured by a manometer in the exhaust duct must be no less than 0

and must not exceed 0.3 inches (0.74 mb) of water column (W.C.).

The ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which

will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL

ductwork joints must be taped to prevent moisture and lint from escaping into the building. Inspection doors should

be installed at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.

NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the

opening must be 2-inches (5.08 cm) larger than the duct (all the way around). The duct must be

centered within this duct.

F. ELECTRICAL INFORMATION

1. Electrical Requirements

It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician

to ensure that the electrical installation is adequate and conforms to local and state regulations or codes. In the

absence of such codes, ALL electrical connections, material, and workmanship must conform to the applicable

requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in Canada, the Canadian

Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas)

or LATEST EDITION.

IMPORTANT: Failure to comply with these codes or ordinances, and/or the requirements stipulated in this

manual can result in personal injury or component failure.

NOTE: Component failure due to improper installation will VOID THE WARRANTY.

Each dryer should be connected to an independently protected branch circuit. The dryer must be connected with

copper wire only. DO NOT use aluminum wire, which could cause a fire hazard. The copper conductor wire/

cable must be of proper ampacity and insulation in accordance with electric codes for making ALL service

connections.

NOTE: The use of aluminum wire will VOID THE WARRANTY.

NOTE: Wiring diagrams are affixed to the inside at the top front control door and the rear upper back guard/

panel.

16 JLA Limited 113374-4

2. Electrical Service Specifications

* Built 4-wire only. Customer must contact the factory to special order 3-wire systems. 10/2/07

IMPORTANT: The dryer must be connected to the electric supply shown on the data label. In the case of

208 VAC or 240 VAC, the supply voltage must match the electric service specifications of the

data label exactly.

WARNING: 208 VAC and 240 VAC ARE NOT THE SAME. Any damage done to dryer components

due to improper voltage connections will automatically VOID THE WARRANTY.

NOTE: JLA reserves the right to make changes in specifications at any time without notice or obligation.

3. Electrical Connections

NOTE: A wire diagram is included with each dryer and is affixed to the back side of the top control (access)

door.

The only electrical input connections to the dryer are the 3-phase

(3ø) power leads (L1, L2, and L3), GROUND, and in the case of 4

wire service, the NEUTRAL. These electrical connections are made

at the terminal block located in the service/relay box at the rear, upper

left hand corner of the dryer. To gain access into this service box,

the service cover must be removed.

The “LINE POWER” and the “GROUND” connections to the dryer

must be made through the knockout hole at the top of the electric

service/relay box. A strain relief must be used where the line power

ground wires go into the electric service/relay box.

ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)

IMPORTANT:

NOTES: A.

208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering,

specify exact voltage.

When fuses are used they must be dual element, time delay, current

limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse

value, by applying either local and/or National Electrical Codes to listed

appliance amp draw data.

Circuit breakers are thermal-magnetic (industrial) motor curve type

ONLY. For others, calculate/verify correct breaker size according to

appliance amp draw rating and type of breaker used.

Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.

SERVICE

VOLTAGE PHASE WIRE

SERVICE

APPROX.

AMP DRAW CIRCUIT

BREAKER

60 Hz 50 Hz

208 3ø 3 11.2 — 20

240 3ø 3 9.4 — 15

230 3ø 3 — 8.0 15

380 3ø

4*—5.1 15

400 3ø

4*—4.8 15

416 3ø

4*—4.6 15

460 3ø 3 5.5 — 15

480 3ø 3 5.5 — 15

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JLA D90 Installation guide

Brand: JLA

Model: D90

Category: Electric laundry dryers

Type: Installation guide

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JLA D90 Installation guide

JLA D90 Installation guide

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